Carcass and meat properties of six genotypes of young bulls finished under feedlot tropical conditions of Mexico
| Autor: | O. V. Vazquez-Mendoza, Abdelfattah Z.M. Salem, Ahmed E. Kholif, M.M.Y. Elghandour, Gilberto Aranda-Osorio, M. Huerta-Bravo, Ema Maldonado-Simán |
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| Rok vydání: | 2017 |
| Předmět: |
Animal breeding
business.industry Marbled meat 0402 animal and dairy science 04 agricultural and veterinary sciences Biology Beef cattle Zebu 040401 food science 040201 dairy & animal science Crossbreed Breed Biotechnology 0404 agricultural biotechnology Animal science Feedlot Animal Science and Zoology Brown Swiss business Food Science |
| Zdroj: | Animal Production Science. 57:1186 |
| ISSN: | 1836-0939 |
| DOI: | 10.1071/an141037 |
| Popis: | The effect of six genotypes (Zebu = Z, European Brown Swiss = EBS, Holstein = H, Z × EBS, Zebu × American Brown Swiss = ABS, Z × ABS, Z × H) on carcass and meat characteristics of young bullocks finished under feedlot conditions was tested. The Z × ABS bullocks had the highest (P = 0.001) average daily gain. The highest (P = 0.017) final liveweight was observed with Z × ABS > EBS > H genotypes. The ribeye area was larger (P = 0.012) for EBS bullocks. Both H and EBS bullocks had lowest (P = 0.001) physiological maturity; although the H bullocks had higher (P = 0.006) pelvis and heart fat values. The best (P = 0.014) conformation was obtained with the Z × ABS and Z × EBS genotypes. The greatest amount of marbling (P = 0.001) was obtained with the H genotype. In general, the crossbred genotypes showed better feedlot performance and carcass characteristics, and it seems that Holstein breed could have a an advantage from the marbling score point of view. |
| Databáze: | OpenAIRE |
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